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Effects of Ultrasonic Frequencies on Grinding Force of Nano-Composite Ceramics Based on Nonlocal Theory
Abstract:
Based on nonlocal theory, The effects of ultrasonic frequencies on the grinding force and nonlocal decay rate are obtained through the experimental study of material properties under ultrasonic vibration grinding test. The results of experiments showed that grinding force is attenuated in the ultrasonic vibration frequency ranges and this attenuation phenomenon becomes more and more evident by the increase of the ultrasonic frequencies. Through analysis of the grinding surface morphology and phase structure, it showed that ultrasonic vibration greatly reduces the average grinding force, and the surface quality are improved, and that it is much easier to achieve ductile-mode machining under ultrasonic vibration. The results of experiments are in accordance with the analysis of nonlocal theory.
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148-153
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September 2012
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Ā© 2012 Trans Tech Publications Ltd. All Rights Reserved
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